Infrared light is a good probe
of the magnetic field because stronger magnetic fields change the way light is emitted in that range.
Not exact matches
Because of Saturn's strong
magnetic field, the poles are home to beautiful Aurorae, just like those
of Earth and Jupiter.
In addition,
because part
of the inertia
of a particle is due to the electromagnetic
field around it, as you speed up such a particle the electric
field produces a
magnetic field, the changing
magnetic field produces a back EMF, and this whole reaction
of the
field produces a resistance to acceleration.
The earth has North and South poles
because of the «
Magnetic Field» generated by the its metallic molten core.
The island is one
of the best places to peer into the history
of Earth's
magnetic field because its fluctuations are recorded in the ancient volcanic rock.
Because the
magnetic field influences the structure
of rocks (and clay pots) during their formation, knowing the
field's history allows you to tie specific objects to specific ranges
of dates.
Because Mars no longer has a global
magnetic field to protect it, solar wind might strip away material from the upper layers
of the atmosphere.
Dangerous cosmic rays are deflected by the
magnetic field back out into space, and our atmosphere remains robust
because of this protection.
In 23 fly - bys which passed through Titan's ionosphere or its
magnetic tail, CAPS detected measurable quantities
of these photoelectrons up to 6.8 Titan radii away from the moon,
because they can easily travel along the
magnetic field lines.
The signal travels between the wires
because the
magnetic field formed by the first wire — the transmitter — creates an electric
field in space, which in turn creates a
magnetic field, and so on, moving outward at the speed
of light.
Because a disk is composed
of ionized gas and dust, a spinning stars
magnetic field gets caught up in it and the result is like a spoon being dragged through molasses, Rebull says.
Current astronauts are not as exposed to the damaging effects
of radiation, Davis says,
because the International Space Station flies in an orbit low enough that the Earth's
magnetic field continues to provide protection.
Like many planets and most stars, Earth produces its own
magnetic field by dynamo action, i.e.
because of the motion
of an electrically conducting fluid - in this case, a mixture
of molten iron and nickel.
«The use
of a radiofrequency - driven
magnetic field is a big advance in remote gene expression
because it is non-invasive and easily adaptable,» says Dordick, who is Howard P. Isermann Professor
of Chemical and Biological Engineering and vice president
of research at Rensselaer.
But solar flares — the brief, intense flashes
of light caused by the sun's
magnetic fields changing shape suddenly — couldn't be causing the heating
because none were observed.
According to him, some storms are most troublesome
because of a process called
magnetic reconnection, in which the
magnetic field of the CME interacts directly with the Earth's
magnetic field.
Because of the high
magnetic field required to produce the magnetoresistance effect, Kobayashi says, the material isn't ready to be used in data storage devices.
Because solar storms enhance the electric currents that let this magnetosphere - ionosphere lightning take place, this type
of energy transfer is much more likely when Earth's
magnetic field is jostled by a solar event.
The use
of a static
magnetic field to cause the reaction is important
because it poses no threat to the body, said Sergiy Minko, the Georgia Power Professor
of Fiber and Polymer Science within the FACS department
of textiles, merchandising and interiors and the Franklin College
of Arts and Sciences department
of chemistry.
The
magnetic field, which may be generated by the planet's core, is connected to the winds
because of high temperatures stripping electrons from atmospheric atoms
of lithium, sodium and potassium, making them positively charged.
Pulsars reveal the
magnetic field in neighboring reaches
of space
because they typically emit polarized light — radio waves that vibrate in a particular plane as they travel through space.
Cusp devices were investigated in the 1960s and 1970s but were largely abandoned
because particles leak out through gaps between the various
magnetic fields leading to a loss
of temperature.
«
Because rock in the deep mantle moves less than a centimeter a year, we know the LLSVP is ancient, meaning it may be a longstanding site for the loss
of magnetic field strength,» said Tarduno.
As Tarduno points out, it is only speculation
because weakening
magnetic fields can recover without leading to a reversal
of the poles.
Another protostar forming in the same cloud
of material, dubbed W75N (B)- VLA 1, sported an organized
magnetic field in 1996 and therefore is farther along in its stellar evolution, likely
because it's more massive.
That's
because the current galactic environment is full
of magnetic fields and turbulence, both
of which greatly complicate the creation
of accurate simulations.
They are able to do this
because they can measure an anomaly in Earth's
magnetic field — like one caused by a massive hunk
of metal.
This is
because the extreme density
of the plasma gives rise to quantum effects, while the high energy density
of the
magnetic field gives rise to relativistic effects, says Shi.
The surfaces
of other planets like Mars are much more susceptible to cosmic rays
because of their thin atmospheres and, in the case
of Mars, its lack
of a
magnetic field.
Because of its charge, a proton becomes trapped inside a supernova remnant's
magnetic field.
Because the
magnetic fields are precisely known, the size
of the cloud is an absolute measure
of the atoms» energy and temperature.
«A
magnetic field protects an atmosphere from the sun,
because it turns charged particles away,» says team member David Brain at the University
of Colorado in Boulder.
«We were excited
because our calculations showed that crystallization
of silicon dioxide crystals from the core could provide an immense new energy source for powering the Earth's
magnetic field.»
Dynamos are possible
because mechanical energy — in this case the movement
of the fluid in the outer core — can generate a
magnetic field.
«The antiprotons look just like familiar protons, but
because they are antimatter, they have a negative charge instead
of positive, so they curve the opposite way in the
magnetic field of the detector.»
The levitation trick works
because giant
magnetic fields slightly distort the orbits
of electrons in the frog's atoms.
Because any electrical current generates a
magnetic field, this roadblock greatly limits the practicality
of harnessing the electron superhighway effect.
Geologists can track continental motion hundreds
of millions
of years into the past
because the direction
of the Earth's
magnetic field changes with latitude, and is «frozen» into rocks as they solidify.
Because the tiny bots contain such a small quantity and surface area
of magnetic material, it takes a relatively strong
magnetic field to move them.
Because the phases respond to both
magnetic and electrical
fields, the material can be controlled in multiple ways, which creates the possibility for new types
of computer chips.
Among its discoveries: an intense radiation belt above Jupiter's cloud tops, helium in about the same concentration as the Sun, extensive and rapid resurfacing
of the moon Io
because of volcanism and a
magnetic field at Ganymede.
«In the earliest phase
of star formation, there are theoretical difficulties in producing such a disk,
because magnetic fields can slow down the rotation
of collapsing material, preventing such a disk from forming around a very young protostar.
The internal structures
of giant planets are much less well known than those
of main - sequence stars
because of uncertainties in the equation
of state
of degenerate gas, the composition (typically non-solar), the interaction with the
magnetic field and, in the upper layers, the relative magnitudes
of internal heat and energy deposited from the sun.
Because the telescope is so far away from Earth, it lacks the protection
of our planet's
magnetic field.
It found that Saturn's
magnetic field is closely aligned with the planet's axis
of rotation, which baffled scientists
because of how they think
magnetic fields are generated — through a difference
of tilt between the
magnetic field and a planet's rotation.
Because the highest - energy cosmic rays are deflected very little by the
magnetic fields in our galaxy - and even less by the much weaker
fields in intergalactic space - we ought to be able to look back in the direction
of the cosmic rays to find their origin.
Because the core is estimated to have begun solidifying nearly a billion years ago, the latest findings suggest that the prevailing conditions, such as the direction
of Earth's
magnetic field, might have changed during the solidification process.
In addition to variations in chemical composition — both
because of the initial abundances and the star's evolutionary status, [34] interaction with a close companion, [35] rapid rotation, [36] or a
magnetic field can also change a main sequence star's position slightly on the HR diagram, to name just a few factors.
Specific sources
of other cosmic rays can not be determined easily,
because large
magnetic fields in the galaxy scatter the rays in all directions.
Relatively few
of the particles reach the earth's atmosphere,
because the earth's
magnetic field acts as a barrier.